But packaged foods have labels, and this is made possible because of government action taken some years ago.

但包装食品的食品标签可以告诉我们这些,这得益于几年前的政府措施

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

And so I think we need to take action as soon as possible to start reducing carbon dioxide emissions.

所以我觉得我们需要尽快开始行动，减少二氧化碳排放。

全球变暖和发达国家 - SpeakingMax英语口语达人